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    JBD BMS battery 650AH capacity limit

    After buying 4 pcs of the JBD 7-20S 200A BMS I found when setting them up that they will not accept battery capacities over 650AH. I confirmed this with their customer support. I did not see it documented anywhere and post this to inform others. I have a 720AH 4P16S battery and cannot...
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    Plastic case prismatics, strapped but no compression?

    I am about to make a 4P16S LifePo4 pack using used tested cells. The cells were in a OEM enclosure in 10S configuration with stainless steel strapping (4 bands) around each group of 5 cells with aluminum plates at each end. I have seen a few other pictures on the net of other plastic...
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    Different JCB BMS than the common one, anyone using?

    I have this BMS coming for a 4P16S Lifepo4 battery build using 170ah cells. Its not the very common JCB model most use but appears to be nearly identical except for the relay to make/break the output. The software and features seem otherwise the same as the common model. My...
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    opinions needed on my plan for 4P16S lifePo4 pack

    In another thread I posted on a bunch (180 on hand now) 170ah surplus lifePo4 prismatic cells I got. I have been testing them in 1P4S 12V configuration and they are testing excellent. So now its time to move on to the 48V pack(s) that I need for my solar. I found this thread of a build...
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    Help with surplus prismatic cell specs

    I am in the process of getting a large quantity of prismatic Lifepo4 cells and the spec sheet has me confused. It lists 4.25V as max charging voltage. This seems wildly above the norm for this type of cell. Long story but they are going to be free. Any comments much appreciated! Spec...
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    Whos has problems with Growatt's PVkeeper program crashing?

    Who has problems with Growatt's PVkeeper program crashing? They are ignoring the problem it seems, it would be good to show them how widespread the crashing is. Place a Yes/No vote and we can see how widespread the issue is.
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